The following events took place on September 12:
- 1683 - The Polish army routed invading Turks who were laying siege to Vienna. Georg Franz Kolschitzky, who was a key figure in the victory, discovered a large hoard of coffee left behind by the fleeing Turks. With this coffee, he established what is considered to be the first European coffee house. Following the establishment of his coffee house, the popularity of coffee would rapidly spread across Europe.